Question 5.12: The hot exhaust gases leaving an internal combustion engine ...
The hot exhaust gases leaving an internal combustion engine at 400 °C, 150 kPa, and at a rate of 0.8 kg/s are used to produce saturated steam at 200 °C in an insulated heat exchanger, as shown in Figure 5.14. Water enters the heat exchanger at the ambient temperature of 20 °C and the exhaust gases leave the heat exchanger at 350 °C. (a) Write the mass, energy, entropy, and exergy balance equations, (b) determine the rate of steam production, and (c) calculate the entropy generation rate and exergy destruction rate in the heat exchanger.
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